Here is a quick video clip of the first run of the telimitry system I made durring a nasty storm it was cut shurt because the lights wen't out .This is about at the end of the test that lasted 45 minutes.
The sreen says MTA that means Motor Temp A sensor and reads 96 and that is in farenhight.
The Subs radio recievers voltage is displayed bellow that and can be seen fluctuating giving exact readings under live submerged conditions at depth of about 3 ft .
The other reading Skip "speed" that one is not hooked up to nothing it uses barometric pressure and if you where to look at the pdf document from the maker it shows how speed is meassured with an aircrafts pitot tube.
Not speed of the props that is read as RPM and is on the next screen.
As I mentioned before the speed of the sub has to be measured with a different type of sensor called a knot meter and then made so that the system can interprit the sensors output in knots or miles per hour,after all the sub IS in a test tank and won't go very fast or far,right?
The sensor is reading the pressure inside of the casing,I know you did not know that about the sensor and I am not crtisizing you for that.
Why show speed of the vessel in this test ?What is important in this test is the motor temp on sensor A ,after about 45 minutes the temp went up to 96 degees,there it stayed till I ended the test as seen in the graf since I want to run again with the cooling system turned off with equal time.To save batery power for that test.
The water is cooler than at the lake ,on the very first post,the temp went mutch higher to 118f.
Colder the water better the cooling effect.
Water is moving around the sub because the prop is turning at around 270 rpm and it is hard to see ,next time Ill make sure its more visable also if it was not running forward why is the sub up against the end of the tank with that kind of current flowing around it,it should have moved bachwrds or to the sides in the tank?
I run very cool motors geared very well and matched to the sub.
I could not show the other screen that shows the RPM because I was by myself and holding the TX and the video camarra at the same time taking the clip as smoth as possible was difficult enough.I will show the RPM tomorrow in a reapeat of the same test but better video.
Tomorrow I will make much longer clips and show more grafs of the systems read out with the water cooling off I am sertain that the temp will go up.
Lets make somthing clear, I can nor do I know how or have the equipment to edit or doctor these videos and would not do it to make the findings in my favor ,I am not that kind of guy and as it has been expressed by a fella that I probably would do such a thing than thats his opinion,it would be neat to actualy make MOVIE MAGICK.
Dave Amur Sub Yard
The gray scale line is temp sensor A ,the prop RPM is a bit screwy in its read out but Ill have to see why its reading that way.